Running numbers, stats crunching is not roleplaying. Players interested in this do not play roleplaying games. They most likely play a war game at a skirmish level.
Therefore computer games that include those features do not capture the worst side of P&P RPGs because that does not belong to RPG. Those video games are simply war games.
Difficulty does not relate exclusively to combat. Role playing should be made difficult to give any substance to role playing.
All these features signal a narrative game. Not a RPG. Story is secondary and non essential in a RPG. RP does not require a story. RP requires situations to install the character in his role. A story in a RPG is only good as the RP situations it brings.
For narrative games, it is another story: the story is central and essential to this kind of games.